Many goalies in the League are now capable of winning the Cup, it depends so much more on how the team is built and the style they play. That changed with the Cap. You only have so much money to spend and many teams don't see the value in paying a high priced goalie, spending that money on rest of lineup instead. Those teams are competing for the Cup almost every year and winning fairly regularly. You don't need to have great goalie or even the best goalie to win, you just need a goalie who doesnt lose games for you and plays above average for a month.